M35 Open Star Cluster


M35 Star Cluster

M35 is an open star cluster rated at magnitude 5.1, and is an excellent object for small telescopes. Charles Messier added this star cluster to his list in 1764. However, the object was noted by other astronomers at least as early as 1745. M35 covers an area that is at least 25 arc-minutes in diameter. The star cluster is located about 2200 light years away, and has a diameter of about 30 light years. M35 has more than 300 stars in the group. The brightest star in the cluster is a magnitude 7.5 B3-type star. M35 also contains a number of yellow G-type and orange K-type giant stars.

This image was taken with a Takahashi FCT-150 using an SBIG ST-8XE CCD.

M35 (NGC 2168)
Constellation: Gemini
RA: 06h 09m 23s Dec: +24d 21' 04"
February 2, 2006
Image by Sid Leach
Scottsdale, Arizona

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